@birk

Founder of @polar_sh - building the future of usage-based billing

 Stockholm
polar.sh
Joined December 2007
  • Tweets4K
  • Following1.9K
  • Followers10.2K
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Birk Jernström retweeted
Polar
@polar_shOct 22
Every founder's favourite billing stack for AI software is just a prompt away. polar.sh/integrate
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Birk Jernström retweeted
Polar
@polar_shOct 20
billing for agentic workflows ✨ we're building the most ambitious metering & billing engine for AI software. a technical deepdive → polar.sh/field-guide
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Birk Jernström retweeted
emil
@emilwidlundOct 16
Just witnessed an internal @polar_sh demo of our new usage metering engine. 3,750× faster than today. A 99.97% reduction in latency. Coming very soon.
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Birk Jernström retweeted
Polar
@polar_shOct 16
Meet Polar. A billing & finance platform built for the usage era.
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Birk Jernström retweeted
Polar
@polar_shOct 15
Usage Billing with Polar is a breeze ✨ Credits that draw down. Overages. Caps. All built in.
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Birk Jernström retweeted
Matt Zatorski
@matzatorskiOct 13
to put in simple terms… if most billing systems are still waiting for the kettle to boil, Polar’s metering already has the tea poured.
Birk Jernström
@birkOct 13
Getting there ⚒️
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Birk Jernström retweeted
emil
@emilwidlundOct 13
Working on a technical piece on how @polar_sh is building the fastest metering infrastructure for AI. What do you want to know?
Polar
@polar_shOct 8
Introducing: The next evolution of Polar ✨ We’re building the most ambitious metering & billing substrate for AI software. — Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution. — Your business as a definition, version controlled & native to agentic workflows. — Definition branching for simulating pricing changes, model forecasts & easy deployment to production. — Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold. — Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer. Coming soon. Learn more → polar.sh/blog/building-the-n…
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Replying to @birk
@birk and @polar_sh keep shipping gold at a truly phenomenal rate. Generational European Co in the making here.
Polar
@polar_shOct 8
Introducing: The next evolution of Polar ✨ We’re building the most ambitious metering & billing substrate for AI software. — Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution. — Your business as a definition, version controlled & native to agentic workflows. — Definition branching for simulating pricing changes, model forecasts & easy deployment to production. — Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold. — Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer. Coming soon. Learn more → polar.sh/blog/building-the-n…
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Birk Jernström retweeted
bio
@biozalpOct 8
Polar will probably be the biggest player in the game when it comes to billing AI infra. I expect an exit via an acquisition by Stripe with billions within 4-5 years. Crazy that this team was 3 person op just 2 years ago, and CEO @birk responded every mail from his own mail lol.
Polar
@polar_shOct 8
Introducing: The next evolution of Polar ✨ We’re building the most ambitious metering & billing substrate for AI software. — Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution. — Your business as a definition, version controlled & native to agentic workflows. — Definition branching for simulating pricing changes, model forecasts & easy deployment to production. — Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold. — Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer. Coming soon. Learn more → polar.sh/blog/building-the-n…
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Birk Jernström retweeted
Jonathan Grahl
@jonathangrahlOct 8
This is all I’ve ever wanted when building past companies! Kind of excited to build something new just so I can use Polar
Polar
@polar_shOct 8
Introducing: The next evolution of Polar ✨ We’re building the most ambitious metering & billing substrate for AI software. — Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution. — Your business as a definition, version controlled & native to agentic workflows. — Definition branching for simulating pricing changes, model forecasts & easy deployment to production. — Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold. — Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer. Coming soon. Learn more → polar.sh/blog/building-the-n…
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Birk Jernström retweeted
Rishen@rishenkapoorOct 8
Speak to @birk, he’ll show you the future of billing for AI and it’s stunning!
Polar
@polar_shOct 8
Introducing: The next evolution of Polar ✨ We’re building the most ambitious metering & billing substrate for AI software. — Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution. — Your business as a definition, version controlled & native to agentic workflows. — Definition branching for simulating pricing changes, model forecasts & easy deployment to production. — Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold. — Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer. Coming soon. Learn more → polar.sh/blog/building-the-n…
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Birk Jernström retweeted
Polar
@polar_shOct 1
Migrate your entire Stripe catalogue, recurring subscriptions & customers to Polar ✨ Today, we're happy to announce our Private Beta of a new Platform Migration feature. Learn more → polar.sh/docs/migrate
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Birk Jernström retweeted
juliettech
@_juliettechOct 8
I've been thinking about this problem a lot AI costs get higher and flat seat rates no longer make sense At the same time, metered billing is complex to set up, hard to track with so many providers/models/features, impossible to project, and charge accordingly. This is so cool
Polar
@polar_shOct 8
Introducing: The next evolution of Polar ✨ We’re building the most ambitious metering & billing substrate for AI software. — Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution. — Your business as a definition, version controlled & native to agentic workflows. — Definition branching for simulating pricing changes, model forecasts & easy deployment to production. — Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold. — Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer. Coming soon. Learn more → polar.sh/blog/building-the-n…
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Birk Jernström retweeted
Polar
@polar_shOct 8
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Birk Jernström retweeted
Justin Schroeder
@jpschroederSep 9
Can’t make this up…the MacBook is using its webcam to look at its screen in a mirror to improve AMD Radeon chip support in Omarchy.
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Birk Jernström retweeted
Petru Rares
@psincraianSep 9
2/3 of today’s top stories are @polar_sh customers 🚀 Great customers trust a great payment platform 😉
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Birk Jernström retweeted
Polar
@polar_shAug 28
We’re super excited to be partnering with @Accel, @Lovable and KTH AI Society for the AI Innovate Hackathon in Stockholm on September 16th. Apply for the hacakthon today → builderbase.com/event/accel-…

Accel AI Innovate — Stockholm

Accel AI Innovate comes to Stockholm. Join the Nordics' best AI builders for a one-day hackathon at Norrsken House, September 16. Build. Pitch Accel. Win.

builderbase.com
Accel
@AccelAug 24
Calling Europe’s Future Founders! On 16 September, AI Innovate kicks off in Stockholm — the first stop in our new event series connecting the people shaping what comes next in AI. As part of the event, we’re hosting a hackathon with support from our partners @Lovable , @polar_sh and KTH AI Society. Applications are now open here: app.builderbase.com/event/ac… Bring your ideas. Build something ambitious. Meet fellow founders, builders and AI enthusiasts from across Europe. What are you waiting for?
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Birk Jernström retweeted
Polar
@polar_shAug 26
3 → 17 employees in 1 year! ✨ This week, we're hanging out in Berlin & celebrating growing our fantastic team to 17 people, and planning out the next evolution of Polar. We have big plans in store for the next few months. We're hiring btw.
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Birk Jernström retweeted
emil
@emilwidlundAug 18
i had no idea what granular synthesis was 1 day ago. tonight, i built a proper engine with a complete sampler, effects signal path & tape recorder. learnt a ton. coming soon.
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Birk Jernström retweeted
Maxime Bourdon Vast
@BourdonFastJul 27
Pause a subscription on @polar_sh instead of canceling it. Billing stops at the end of the current period. The payment method stays on file, so resuming charges the customer right away with no second checkout. Built for seasonal plans and account freezes.
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